Quarter	National Currency Units per US Dollar
1979-01-01	0.738556161761759
1979-04-01	0.750565693446333
1979-07-01	0.719715241992768
1979-10-01	0.710956239242781
1980-01-01	0.709434433147180
1980-04-01	0.719468819192722
1980-07-01	0.702709009653821
1980-10-01	0.746856448566784
1981-01-01	0.811009564679504
1981-04-01	0.896128869050396
1981-07-01	0.968992696825202
1981-10-01	0.916724617787016
1982-01-01	0.963522297664895
1982-04-01	1.011332200910450
1982-07-01	1.051620575565420
1982-10-01	1.071016308274310
1983-01-01	1.055733333336930
1983-04-01	1.096266666664940
1983-07-01	1.161733333331840
1983-10-01	1.185799999996860
1984-01-01	1.203566666663390
1984-04-01	1.212033333334450
1984-07-01	1.303099999999780
1984-10-01	1.367466666667800
1985-01-01	1.463133333328490
1985-04-01	1.378399999996570
1985-07-01	1.274799999999230
1985-10-01	1.171266666662030
1986-01-01	1.082966666668650
1986-04-01	1.043266666665050
1986-07-01	0.987599999998565
1986-10-01	0.962133333333137
1987-01-01	0.888866666666824
1987-04-01	0.869900000000295
1987-07-01	0.886033333333520
1987-10-01	0.824900000000222
1988-01-01	0.811000000000301
1988-04-01	0.820433333333616
1988-07-01	0.897499999999733
1988-10-01	0.856033333332865
1989-01-01	0.888699999999517
1989-04-01	0.930700000000191
1989-07-01	0.927633333333385
1989-10-01	0.885866666666213
1990-01-01	0.829266666666323
1990-04-01	0.818066666666709
1990-07-01	0.771433333332728
1990-10-01	0.731933333333169
1991-01-01	0.747033333333093
1991-04-01	0.843100000000050
1991-07-01	0.849700000000060
1991-10-01	0.796200000000075
1992-01-01	0.791766666666566
1992-04-01	0.787133333333259
1992-07-01	0.721766666666250
1992-10-01	0.789866666666058
1993-01-01	0.839566666667452
1993-04-01	0.828533333333932
1993-07-01	0.869666666666793
1993-10-01	0.876966666666704
1994-01-01	0.889433333333121
1994-04-01	0.860533333333175
1994-07-01	0.815499999999398
1994-10-01	0.806800000000294
1995-01-01	0.785848986667285
1995-04-01	0.751292970000577
1995-07-01	0.763240156666143
1995-10-01	0.759436339999714
1996-01-01	0.776913563333437
1996-04-01	0.796905586666980
1996-07-01	0.785119690000404
1996-10-01	0.792221156666225
1997-01-01	0.849794113333094
1997-04-01	0.874659283333434
1997-07-01	0.915777173332875
1997-10-01	0.889291036667297
1998-01-01	0.920057073333737
1998-04-01	0.910051666666429
1998-07-01	0.896476053174886
1998-10-01	0.849906204906205
1999-01-01	0.890865035397459
1999-04-01	0.946297424294416
1999-07-01	0.953590795041067
1999-10-01	0.963498337782132
2000-01-01	1.012899909945490
2000-04-01	1.070799525224050
2000-07-01	1.106582181474620
2000-10-01	1.150102663916010
2001-01-01	1.083835102585110
2001-04-01	1.144416038404250
2001-07-01	1.121785947013650
2001-10-01	1.116487265324860
2002-01-01	1.140732985400200
2002-04-01	1.087412111460310
2002-07-01	1.016582204256970
2002-10-01	0.999533230103932
2003-01-01	0.931511905508824
2003-04-01	0.880365741152534
2003-07-01	0.888370063279689
2003-10-01	0.840405156899637
2004-01-01	0.799904118865737
2004-04-01	0.829705986621947
2004-07-01	0.817877314843600
2004-10-01	0.771960956694930
2005-01-01	0.763091482381730
2005-04-01	0.794589826042209
2005-07-01	0.820007598424589
2005-10-01	0.840788753502769
2006-01-01	0.831325925187165
2006-04-01	0.795617708778127
2006-07-01	0.784593759317170
2006-10-01	0.775251489844097
2007-01-01	0.762709423148500
2007-04-01	0.741796455105816
2007-07-01	0.727338573417244
2007-10-01	0.690097257054422
2008-01-01	0.667464310519917
2008-04-01	0.640181056697950
2008-07-01	0.666884716732543
2008-10-01	0.761399275362319
2009-01-01	0.768604545454546
2009-04-01	0.734309884559885
2009-07-01	0.699093544137022
2009-10-01	0.677193719806763
2010-01-01	0.722664285714286
2010-04-01	0.786976190476190
2010-07-01	0.773787878787879
2010-10-01	0.736745718050066
2011-01-01	0.731408247066943
2011-04-01	0.694783549783550
2011-07-01	0.708233264320221
2011-10-01	0.742209956709957
2012-01-01	0.762537518037518
2012-04-01	0.779816425120773
2012-07-01	0.799138274044796
2012-10-01	0.770532624380451
2013-01-01	0.757865873015873
2013-04-01	0.765691004329004
2013-07-01	0.754941272978230
2013-10-01	0.734692482903570
2014-01-01	0.729664746721877
2014-04-01	0.729257503607504
2014-07-01	0.754988833992094
2014-10-01	0.800869478260870
2015-01-01	0.888312818181818
2015-04-01	0.904120108225108
2015-07-01	0.899525335654683
2015-10-01	0.913848313570487
2016-01-01	0.907330710835059
2016-04-01	0.885569054834055
2016-07-01	0.896160021645022
2016-10-01	0.928066320346321
2017-01-01	0.938476221343874
2017-04-01	0.909275285243742
2017-07-01	0.851432953761214
2017-10-01	0.849244235209235
2018-01-01	0.813750682476943
2018-04-01	0.839484382332643
2018-07-01	0.859573256916996